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SI brochure, Appendix 1, section 2.7
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CIPM, 1946, Resolution: definitions of photometric units
Note: The two definitions contained in this Resolution were ratified by the 9th CGPM (1948), which also approved the name candela given to the "new candle" (Resolution 7). For the lumen the qualifier "new" was later abandoned. This definition was modified by the 13th CGPM (Resolution 5), given below.
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13th CGPM, 1967-1968, Resolution 5: SI unit of luminous intensity (candela)
Note: This definition was abrogated by the 16th CGPM (1979, Resolution 3, given below).
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16th CGPM, 1979, Resolution 3: SI unit of luminous intensity (candela)
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